Single, spare toilet paper roll holder



FIG. 1 is a top plan view of a single, spare toilet roll holder showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being identical in appearance;

FIG. 3 is a front elevational view thereof, the rear being identical in appearance;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a reduced top, front, and left side perspective view thereof, with the broken-line disclosure of a standard toilet roll bracket assembly being for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for a single, spare toilet roll holder, as shown and described. 